Avaliou-se o efeito da suplementação com óleo de arroz sobre o peso e perfil hematológico de equinos submetidos a exercício físico moderado. Foram utilizados 14 equinos machos, com peso aproximado de 411kg, distribuídos entre o grupo tratado (GT; n=7), suplementado com óleo de arroz adicionado diariamente à dieta (0,5ml/kg/PV), e o grupo-controle (GC; n=7), tratado com óleo de soja (0,5ml/kg/PV). Foram feitas três avaliações: antes do início e aos 20 e 40 dias após o início do tratamento, as quais consistiram de determinação do peso, exame clínico e coleta de amostras de sangue dos animais, antes e após o exercício, para hematócrito, hemograma, dosagem de glicose, lactato e proteína total. Não houve diferença entre grupos e nem entre avaliações quanto às variáveis peso e proteína total. A glicose aumentou significativamente após o exercício na segunda coleta no GC e na terceira no GT. No GC, o lactato aumentou nas coletas após o exercício, enquanto no GT, os valores foram semelhantes antes e após. A suplementação com óleo de arroz na dieta foi determinante para impedir o aumento de lactato em equinos submetidos a exercício, o que pode ser relevante para aumentar o seu desempenho atlético.

The effect of the supplementation with rice oil was evaluated on the weight and hematologic profile of equines submitted moderate physical exercise. Fourteen male equines, averaging 411kg, were distributed into treated group (GT; n=7), supplemented daily with rice oil added to the diet (0.5ml/kg/BW); and control group (GC; n=7), treated with soybean oil (0.5ml/kg/BW). Three evaluations were made before the treatment, and 20 and 40 days after the beginning of the treatment, consisting of the determination of the weight, the clinical examination, and the collection of blood samples before and after the exercise for hematocrit, hemogram, glucose, lactate, and total protein determinations. There was no difference between the groups, neither between evaluations for weight nor total protein. The glucose increased significantly after the exercise in the second collection in the GC and in the third in the GT. The GC lactate increased significantly in the collections after exercise; while in the GT, the results were similar before and after treatments. The supplementation of the diet with rice oil was determinant to hinder the lactate increase in the animals submitted to exercise, what could be relevant to increase their athletic performance.

Caracterizou-se filogeneticamente o vírus da raiva, isolado de morcegos hematógafos (Demodus rotundus). Cento e noventa e nove D. rotundus foram capturados em cinco abrigos, no Norte e Noroeste do Estado do Rio de Janeiro e sul do Espírito Santo. Sete deles foram positivos para a raiva. Amostras desses vírus foram sequenciadas e comparadas com sequências provenientes de diversos estados brasileiros. As sequências de vírus da raiva isoladas, na região norte do Estado do Rio de Janeiro, mostraram características que as distinguem de amostras de vírus isoladas em outras regiões do país, no entanto foram idênticas às isoladas de bovinos no noroeste do Rio de Janeiro.

Rabies samples isolated from vampire bats captured in the Rio de Janeiro State were phylogenetically analyzed. One hundred and ninety nine vampire bats were captured from five shelters from North and Northwest of Rio de Janeiro and South of Espírito Santo States. Seven of them were positive for rabies. Theses samples were sequenced and compared with rabies virus sequences from several Brazilian states. The sequences of rabies virus, isolated in the present work, from North of Rio de Janeiro State, showed characteristics that differ of the sequences isolated from bats from other Brazilian regions. However, they were identical to samples isolated from cattle in Northwest of Rio de Janeiro state.

Lanthanum chromites (LaCrO3) are the main materials used as interconnect for solid oxide fuel cells. However, there are several difficulties involved in the processing of these materials. The objective of this work is to investigate and to characterize the relationships between microstructural development process and the electro-thermal-mechanical behavior of earth-alkaline metals doped lanthanum chromites-based ceramics. Calcium and strontium doped lanthanum chromites-based ceramic powders were produced by solution-based method from respective metallic nitrates. Samples were prepared by pressing and sintering procedures. The phase composition was evaluated by X-ray diffraction and densification level by Archimedes method. The microstructural characterization was made by scanning electron microscopy, energy dispersive X-ray spectroscopy and thermal analysis techniques. Electrical tests were used to evaluate the electrical conductivity of the samples, and thermal expansion coefficient was determined by dilatometric measurements. The obtained experimental results corroborate the literature comments concerning the difficulty of lanthanum chromite-based ceramics with high densification level and evidence the great influence of the nature of the dopants on the sintering mechanism and the microstructural and electric characteristics of the produced ceramics. The best ones results, in terms of densification and homogeneity characteristics, had been gotten through multiple doping with calcium and strontium, and in sintering temperature conditions lower that the normally considered to pure or mono-doped lanthanum chromite-based ceramics.

Onze amostras de sistema nervoso central de cães coletados entre 2000 e 2004 foram positivas pela RT-PCR, a qual amplificou um fragmento de 480pb do gene N do vírus da cinomose canina (VCC). A análise filogenética baseada na seqüência parcial do gene N mostrou quatro principais agrupamentos genéticos. Todas as amostras de cães segregaram no agrupamento I, com identidade média de nucleotídeos de 95,8% e 95,6% com as amostras vacinais Onderstepoort e Lederle, respectivamente. O agrupamento II agregou todas as amostras relacionadas aos guaxinins. O agrupamento III agregou amostras orientais e o agrupamento IV agregou as amostras vacinais Onderstepoort e Lederle, com identidade média de nucleotídeos de 99,7% entre elas. Este é o primeiro relato de análise filogenética de amostras de VCC no Brasil.

Eleven central-nervous-system samples collected from stray dogs between 2000 and 2004 were found positive by RT-PCR, which amplified a 480bp fragment of the N gene of canine distemper virus (CDV). Phylogenetic analysis based on partial N-gene sequences showed four major clusters. All dog strains segregated into cluster I, with a mean nucleotide identity of 95.8% and 95.6% with the Onderstepoort and Lederle vaccine strains, respectively. Cluster II contained all the raccoon-related strains, cluster III Orient strains and Cluster IV the Onderstepoort and Lederle vaccine strains, with a mean nucleotide identity of 99.7% between them. This is the first report of phylogenetic analysis of CDV strains in Brazil.

O óleo essencial obtido por hidrodestilação das folhas de Eugenia punicifolia, coletados a partir de duas regiões de Matas Serranas do Estado de Pernambuco (Serra Negra e Brejo da Madre de Deus), foi analisado por CG/EM. O monoterpeno oxigenado, linalol (SN: 44,0%, BMD: 61,2%), foi o componente principal do óleo de ambas amostras. Cerca de 66,2% da constituição dos voláteis da amostra proveniente de SN e 74,2% de BMD referem-se aos monoterpenos oxigenados, enquanto 33,6% da amostra de SN e 20,5% de BMD são sesquiterpenos oxigenados, sendo o <FONT FACE=Symbol>b</font>-cariofileno o mais abundante (SN: 22,7%, BMD: 16,2%). Com exceção do <FONT FACE=Symbol>a</font>-cadinol, presente apenas no óleo proveniente do Brejo da Madre de Deus, a constituição química de ambas as amostras foi à mesma, variando apenas o percentual relativo de seus constituintes.

The essential oils obtained from the leaves of Eugenia punicifolia by hydrodistillation, which were collected from two different locations of Pernambuco (Serra Negra and Brejo da Madre de Deus), have been investigated by GC/MS. Linalol was found to be the main component of this oil from SN (44,0%) and BMD (61,2%). About 66,2% of the oil constituents from SN and 74,2% from BMD are oxygenated monoterpenes, with predominance of beta-cariofileno (SN: 22,7 and BMD: 16,2%). With exception of <FONT FACE=Symbol>a</font>-cadinol, present only in the oils from plants colleted in Brejo da Madre de Deus, the chemical composition of both samples was quite similar, the only difference was the relative content among their components.